Steam generating apparatus



FIG. 1 is a perspective view of a steam generating apparatus showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the steam generating apparatus are for portions that forms no part of the claimed design. 

CLAIM The ornamental design for a steam generating apparatus, as shown and described. 